1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Core Words Familarize yourself with the 'core words'.
Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
Wordsense Learn about the wordsenses of the english term.

ETYMOLOGY

KOREAN 3.0 Eng Wordtype Etym. Gb Vie
☆☆☆ MUSICAL INSTRUMENT Noun 乐器乐器 nhạc cụ
☆☆ MUSIC; MUSICAL PIECE Noun 曲曲子，歌曲 khúc nhạc, bản nhạc
☆☆ MUSICAL Noun musical 音乐剧 musical, ca kịch, ca vũ kịch